Cluster-socket.



' PATENTED JULY 17, 1906.

J. H. DALE. CLUSTER SOCKET. APPLICATION FILED mAYzs. 1905.

number of UNITED srarns PATENT OFFICE.

- Specification of Letters Patent.

Patented July 17, 1906.

A umiw filed May 25, 1905. Serial No. 262,170.

To aZZ w/tont it nutr concern:

Be it known that I, JOHN H. DALE, a citizen of the United States, residing at the city of New York, in the borough of Manhattan and State of New York, have invented certain new and useful Improvements in Cluster-Sockets, of which the following is a full, clear, and exact description.

My invention relates to cluster-sockets for incandescent lamps, and comprises means for facilitating the assembling of a comparatively large number of shell lamp-contacts together with the other lamp-contacts in a small inclosing casing, so that the shell-contacts-will extend through perforations in the casing. When a small number of lamp-contacts is used, their insertion in the casing Without dismantling them from their base involves no special difficulties, but when the amp-contacts is. large some special construction becomes'necessary to use them in connection with a small outer casing. My invention meets this latter requirement by the use of pivoted contacts, thus allowing the contacts to be turned to facilitate theirinsertion in the casing. It also involves a new and improved supporting means for the shell-contacts, so that a larger number can be used in a given, space than has heretofore been customary, at the'same time allowing them to be inserted without any dismantling from their common block.

socket, but some of its features may be applied to incandescent lamps broadly The invention'will be readilyunderstood from the following description, taken in con nection with the accompanying drawings, wherein like reference characters refer tothe .same parts.

'Figu're 1 represents a vertical central sec- -tion of a cluster lamp-socket. Fig. 2 is also a section of a-portion of the interior mechanism of'said socket and shows the manner in l which the shell-contacts may be manipulated. Fig. 3 is a view'looking into the casing 1 after it has been removed fromthe base 2.

Referring to Fig. 1, 2 represents'a base supported by and threaded upon the lower end of the supporting-pipe 1, through which thewires leading to the socket pass. Attached to the base 2 by means of pins or s'crewsS, engaging slots in said base, is the perforatedshell' 41, through the perforations of which the incandescent lamps extend into their sockets. Within this shell 4 is the insulating-block 5 with a flat bottom surface and with a central hub 6, extending upwardly from its upper surface, said hub being recessed at 7. Passing through this portion 6 is the screw 8, which engages the lower contact-plate 10, held against the lower surface of the base 5 by screws passing through the base, said screw 8 having secured between its head and the washer 9 one of the leading-in wires. From the plate 10 contact-lugs 11 extend upwardly, each forming the center contact of a lamp-socket. On the upper side of block 5 is the metallic ring 12, flanged at its base 13 and secured to the block 5 by means of screws passing through the block. This ring re places the usual plate-contact. The top portion of ring 12 is flanged inwardly, as at 14. The said ring is slotted at proper intervals to allow for the insertion of links 15, which are held to thering by a wire 16, passing through perforatibns at the inner ends of said links and extending under the flange 14. In this manner the links 15 are pivoted to the metallic contact-ring 12. The outer ends of these links are pivoted to shell-contacts 18, two links being attached to each a ll by means of pins or screws 17. The links 15 converge as they extend inwardly from the shell-contacts, so as to allow the maximum number of shell-contacts to be placed in the A My invention is not limited to a cluster-.

casing. From this construction it will be noted that the shell-contacts 18 are doubly pivoted to the metallic ring 12, so that they may be turned upwardly and also drawn insulatingb1 1 shings 19, which are threaded internally to engage the exterior threads of the shell-contacts. The bushings are also flanged so as to neatly abut against the exterior shell 4. As is stated above, screw 8 comprises one'terminal of the cluster-socket and the other terminal 20 is attached to one or more of the links" 15', and in this manner current is conducted to all the links, the ring 12,

and'the shell-contacts.

When it is desired to insert block 5 and the attached lamp-sockets in the casing 1, by properly turnin and drawing inwardly one or more of the shell-contacts 18 on its pivots the block 5 and all the sockets can be readily I inserted Without any dismantling of the lamptacts pivoted to said links and adapted to excontacts form their block. By a similar matend through the openings;

nip'ulation the block and its attached sockets. 13. A cluster incandescent-lamp socket, can be readily removed from the casing, it comprising a conducting member, a plurality such removal becomes desirable. of conducting-links pivoted to said member 70 It is to be understood that various modi'liand a plurality of lamp-contacts secured to -cat1ons may be made in the construction of said links.

such a cluster-socket and yet fall within the 14:. A cluster incamlescent-lamp socket, spirit and scope of my invention. comprising a casing with a plurality of open I have shown my invention. as applied. to ings therethrough, a conducting member, a 7 5 a cluster-socket for SIX lamps; but it IS obviplurality of conducting-links pivotedto said ous that it may be applied to a socket em member and a plurality of lamp-c0ntacts seploying any-number of lamps. cured to said links and adapted to extend hat 1 claim as my invention, and desire through. said openings.

1 to secure by LettersPatent of the United 15. A cluster incandescent-lamp socket, 80 I States, 1s comprising a conducting member, a plurality 1. An incandescent-lamp socket comprisof ciniducting-links pivoted to said. member ing, a shell-contact, and two converging supand a plurality of lamp-wntacts pivoted to porting-arms flexibly attached to said eonsaid links.

2o tact; 16. A cluster incandescent-lamp socket, 85

2.- An incandescent-lamp socket compriscomprising a casing with a plurality of open ing, a shcll contact, and two converging supings therethrough, a conducting member, a porting-arms pivoted to said contact, plurality of" conductingdinks pivoted to said 3. An incandescent-lamp socket comprismember, and a plurality of lamp-contacts 111g, a block, a plurality of conver ing suppivoted to said links and adapted to extend o porting arms pivoted. to said. blodk, and a through said openings. lamp-contact secured to said arms. 17. A cluster incandescent -la1np socket,

' 4. Aclusterincandescent-lamp socket eom- Comprising an insulating member, a multipleprising, a plurality of lamp-contacts, and a contact plate secured to said member, a pluo plurality of converging arms pivoted to each rality of links pivoted on said member and 5 of said lamp-contacts. a plurality of lamp-contacts pivoted to said.

Aclusterincandescent-lampsocket comlinks. prising, a block, a plurality ol" lampcontacts, 18. A cluster meandescent-lamp socket,

and a plurality of converging links pivoted to comprising a casing with a plurality of 0pm.-

5 each lampcontact, all of said links being pivings tlu-iretln'ough, an insulating member, a 100 oted to said block. lnultipie-contact plate secured to said mem- 6. An incandescent-lamp socket, comprisher, a plurality of links pivoted to said meming a casing with an opening therethrough, a her and a )lurality of lan'ip-contacts pivoted lmk, and a lamp-contact secured to said link to said links and adapted to extend through 40 and adapted to extend through. said opening.- said openings. '105 7. An incandescent-lam socket coinpris IS). A cluster incamlescent-lamp socket,

l in a link and a lamp-cm tact pivoted to said comprising a insulating member, a multiple-' contact secured thereto, a conducting mom- 8 An ineandescent-lamp socket, comprisber mounted on'saidinsulating member, a v in a casing with an. opening thcretlmnigh, a plurality ol condlreting-links pivoted to said IIO lini and a lamp-contact pivoted to said link conducting member and a plurality of lampand adapted to extend through said opening. contacts pivoted to said links.

9. A cluster incamlescent-lamp socket, 20. A cluster incamlesccnt-lamp socket, comprisin a block, a plurality ol' links pivcon'iprising a casing with a plurality of openoted to said block, and a plurality ol" lampings therctln-ough, an insulating member, a

contacts secured to said links. multiple contact secured thereto, a conduct- 10. A cluster incamlesccnt-lmnp socket, ing member mounted on said insulating memcomprising a casing with a. plurality ol" openher, a plurality ol' eond .ieti gdink iv t d ings therethrough, a block, a plurality of tosaid comlnctingmemberand.apluralityof 55 links pivoted. to said block an I a plurality ol' lamp -contacts pivoted to said links and lamp-contacts securwl to sm i links, and adapted to extend through said openings. adapted tr. extend through said openings. .21. In an incandcsccnt-lamp socket, acon- 11. A cluster incandescent-lamp socket, ducting-ring provided with a llange, a plu-' comprising a block, a plurality ol" links pivrality' ol' cenducting-lii-iks each with a hole Quoted to said block and a plurality of contacts therethrough and means passing through pivoted to saidlinks. said holes and under the flange, to secure the 12. A cluster inmindesccnt-lamp socket, links in place. 7 comprising a casing with. a plurality ol open- 22. The colnlnnatron. oi a casm with a mgs theqethrough, a block, a plurality ol" links plurality ol 'pcrlorations, an insulating-block, 65 pivotedi fo said block and a plurality ol" conamultiple lamp-contact secured to said block,

a plurality of lamp shell-qontaets, a conduCt- I In Witness whereof I subscribe my signaing member secured to said block, a plurality ture in the presence of two witnesses. of conducting-links pivoted to said conduct- T ingmember, said shell-contacts being piv0t- JOHA DALE ed to said links for the ready removal and in- VViti'iessesz sertion of the shell-contacts through the cas- WM. M. STOCKBRIDGE,

ing-perforations. FRANK S. OBER. 

